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DT  System  Technical Guide 14

Intercom function

There are three kinds of intercom function available in the DT system.

1. Guard Unit Call

A Monitor can be assigned to be the guard unit Monitor, by setting on the OSD screen of the

Monitor. When the user's Monitor is in standby, press call button or intercom button, the intercom

page will show up on the screen, than select and conrm 'Call Guard Unit' item, and the Monitor

will call the guard unit Monitor, when the guard unit Monitor answers the call, conversation with

the guard person is started.

2. Inner Call

When multi Monitors are installed in one apartment, inner call is availlable. Note that all Monitors should have the

same User Code, and the Master and Slave address should be set on the Monitor(see page 40 for detail information).

When the Monitor is in standby, press call button or intercom button, the intercom page will show up on the screen,

than select and conrm 'Inner Call' item, and other Monitors will ring at the same time. When any Monitor answers

the call, other Monitors will stop ringing and go back to standby state.

3. Intercom Call (Namelist)

The namelist intercom is for apartment to apartment calling. The user in one apartment can call other apartments by

selecting the name on the screen. In this way, it's no need to remumber the ID(User Code or room address) of the

other users. A complete namelist of all the users in the system can be upload to the Door Station by the DT CONFIG

software, and then the Door Station will send the namelist to all Monitors.

Terminal Descriptions

1 2 3 4 5 6

BUS

SW+

SW-

EXT-RING

GND

VIDEO

Monitor

Connection Board

•

SW+:

Door bell call button.

•

SW-:

Door bell call button.

•

EXT-RING:

External ringer output(12Vdc 100mA)

•

GND:

Ground.

•

VIDEO:

Video signal output.

•

S1:

DIP switches for system congurations.

•

BUS:

nonpolarity bus line.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 52 53

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DT 2-wire Especificaciones Pagina 17

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